kernel/linux.git/drivers/base/property.c, branch v6.12.80

device property: Allow secondary lookup in fwnode_get_next_child_node()

2026-03-25T10:08:34+00:00

commit 2692c614f8f05929d692b3dbfd3faef1f00fbaf0 upstream. When device_get_child_node_count() got split to the fwnode and device respective APIs, the fwnode didn't inherit the ability to traverse over the secondary fwnode. Hence any user, that switches from device to fwnode API misses this feature. In particular, this was revealed by the commit 1490cbb9dbfd ("device property: Split fwnode_get_child_node_count()") that effectively broke the GPIO enumeration on Intel Galileo boards. Fix this by moving the secondary lookup from device to fwnode API. Note, in general no device_*() API should go into the depth of the fwnode implementation. Fixes: 114dbb4fa7c4 ("drivers property: When no children in primary, try secondary") Cc: stable@vger.kernel.org Signed-off-by: Andy Shevchenko Reviewed-by: Rafael J. Wysocki (Intel) Reviewed-by: Sakari Ailus Link: https://patch.msgid.link/20260210135822.47335-1-andriy.shevchenko@linux.intel.com Signed-off-by: Danilo Krummrich Signed-off-by: Greg Kroah-Hartman

Merge tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2024-05-22T19:26:46+00:00

Pull char/misc and other driver subsystem updates from Greg KH: "Here is the big set of char/misc and other driver subsystem updates for 6.10-rc1. Nothing major here, just lots of new drivers and updates for apis and new hardware types. Included in here are: - big IIO driver updates with more devices and drivers added - fpga driver updates - hyper-v driver updates - uio_pruss driver removal, no one uses it, other drivers control the same hardware now - binder minor updates - mhi driver updates - excon driver updates - counter driver updates - accessability driver updates - coresight driver updates - other hwtracing driver updates - nvmem driver updates - slimbus driver updates - spmi driver updates - other smaller misc and char driver updates All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (319 commits) misc: ntsync: mark driver as "broken" to prevent from building spmi: pmic-arb: Add multi bus support spmi: pmic-arb: Register controller for bus instead of arbiter spmi: pmic-arb: Make core resources acquiring a version operation spmi: pmic-arb: Make the APID init a version operation spmi: pmic-arb: Fix some compile warnings about members not being described dt-bindings: spmi: Deprecate qcom,bus-id dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema spmi: pmic-arb: Replace three IS_ERR() calls by null pointer checks in spmi_pmic_arb_probe() spmi: hisi-spmi-controller: Do not override device identifier dt-bindings: spmi: hisilicon,hisi-spmi-controller: clean up example dt-bindings: spmi: hisilicon,hisi-spmi-controller: fix binding references spmi: make spmi_bus_type const extcon: adc-jack: Document missing struct members extcon: realtek: Remove unused of_gpio.h extcon: usbc-cros-ec: Convert to platform remove callback returning void extcon: usb-gpio: Convert to platform remove callback returning void extcon: max77843: Convert to platform remove callback returning void extcon: max3355: Convert to platform remove callback returning void extcon: intel-mrfld: Convert to platform remove callback returning void ...

device property: Fix a typo in the description of device_get_child_node_count()

2024-05-05T06:34:06+00:00

s/cound/count/ Signed-off-by: Christophe JAILLET Reviewed-by: Sakari Ailus Link: https://lore.kernel.org/r/369e7f6898c4a442d45aa15d7d969131d61e9cee.1714323747.git.christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman

device property: Move fwnode_handle_put() into property.h

2024-03-25T19:50:08+00:00

By having this function as static inline in the header, the compiler is able to see if can optmize the call out if (IS_ERR_OR_NULL(fwnode)) This will allow a simpler DEFINE_FREE() call in the following patch. Suggested-by: Sakari Ailus Reviewed-by: Sakari Ailus Acked-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20240217164249.921878-2-jic23@kernel.org Signed-off-by: Jonathan Cameron

device property: Don't use "proxy" headers

2024-03-07T22:07:26+00:00

Update header inclusions to follow IWYU (Include What You Use) principle. Reviewed-by: Sakari Ailus Acked-by: "Rafael J. Wysocki" Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20240301180138.271590-5-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

driver core: Move fw_devlink stuff to where it belongs

2024-03-07T22:07:22+00:00

A few APIs, i.e. fwnode_is_ancestor_of(), fwnode_get_next_parent_dev(), and get_dev_from_fwnode(), that belong specifically to the fw_devlink APIs, may be static, but they are not. Resolve this mess by moving them to the driver/base/core where the all users are being resided and make static. No functional changes intended. Reviewed-by: Sakari Ailus Acked-by: "Rafael J. Wysocki" Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20240301180138.271590-3-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

Merge tag 'driver-core-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2024-01-18T17:48:40+00:00

Pull driver core updates from Greg KH: "Here are the set of driver core and kernfs changes for 6.8-rc1. Nothing major in here this release cycle, just lots of small cleanups and some tweaks on kernfs that in the very end, got reverted and will come back in a safer way next release cycle. Included in here are: - more driver core 'const' cleanups and fixes - fw_devlink=rpm is now the default behavior - kernfs tiny changes to remove some string functions - cpu handling in the driver core is updated to work better on many systems that add topologies and cpus after booting - other minor changes and cleanups All of the cpu handling patches have been acked by the respective maintainers and are coming in here in one series. Everything has been in linux-next for a while with no reported issues" * tag 'driver-core-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (51 commits) Revert "kernfs: convert kernfs_idr_lock to an irq safe raw spinlock" kernfs: convert kernfs_idr_lock to an irq safe raw spinlock class: fix use-after-free in class_register() PM: clk: make pm_clk_add_notifier() take a const pointer EDAC: constantify the struct bus_type usage kernfs: fix reference to renamed function driver core: device.h: fix Excess kernel-doc description warning driver core: class: fix Excess kernel-doc description warning driver core: mark remaining local bus_type variables as const driver core: container: make container_subsys const driver core: bus: constantify subsys_register() calls driver core: bus: make bus_sort_breadthfirst() take a const pointer kernfs: d_obtain_alias(NULL) will do the right thing... driver core: Better advertise dev_err_probe() kernfs: Convert kernfs_path_from_node_locked() from strlcpy() to strscpy() kernfs: Convert kernfs_name_locked() from strlcpy() to strscpy() kernfs: Convert kernfs_walk_ns() from strlcpy() to strscpy() initramfs: Expose retained initrd as sysfs file fs/kernfs/dir: obey S_ISGID kernel/cgroup: use kernfs_create_dir_ns() ...

Merge tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2024-01-18T00:47:17+00:00

Pull char/misc and other driver updates from Greg KH: "Here is the big set of char/misc and other driver subsystem changes for 6.8-rc1. Other than lots of binder driver changes (as you can see by the merge conflicts) included in here are: - lots of iio driver updates and additions - spmi driver updates - eeprom driver updates - firmware driver updates - ocxl driver updates - mhi driver updates - w1 driver updates - nvmem driver updates - coresight driver updates - platform driver remove callback api changes - tags.sh script updates - bus_type constant marking cleanups - lots of other small driver updates All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (341 commits) android: removed duplicate linux/errno uio: Fix use-after-free in uio_open drivers: soc: xilinx: add check for platform firmware: xilinx: Export function to use in other module scripts/tags.sh: remove find_sources scripts/tags.sh: use -n to test archinclude scripts/tags.sh: add local annotation scripts/tags.sh: use more portable -path instead of -wholename scripts/tags.sh: Update comment (addition of gtags) firmware: zynqmp: Convert to platform remove callback returning void firmware: turris-mox-rwtm: Convert to platform remove callback returning void firmware: stratix10-svc: Convert to platform remove callback returning void firmware: stratix10-rsu: Convert to platform remove callback returning void firmware: raspberrypi: Convert to platform remove callback returning void firmware: qemu_fw_cfg: Convert to platform remove callback returning void firmware: mtk-adsp-ipc: Convert to platform remove callback returning void firmware: imx-dsp: Convert to platform remove callback returning void firmware: coreboot_table: Convert to platform remove callback returning void firmware: arm_scpi: Convert to platform remove callback returning void firmware: arm_scmi: Convert to platform remove callback returning void ...

device property: fwnode_property_get_reference_args allows NULL args now

2023-12-07T02:35:26+00:00

All three fwnode_property_get_reference_args() implemantations now allow args argument to be NULL. Document this. Signed-off-by: Sakari Ailus Reviewed-by: Andy Shevchenko Reviewed-by: Heikki Krogerus Link: https://lore.kernel.org/r/20231109101010.1329587-4-sakari.ailus@linux.intel.com Signed-off-by: Greg Kroah-Hartman

device property: Add fwnode_name_eq()

2023-12-04T09:37:46+00:00

Add fwnode_name_eq() to implement the functionality of of_node_name_eq() on fwnode property API. The same convention of ending the comparison at '@' (besides NUL) is applied on also both ACPI and swnode. The function is intended for comparing unit address-less node names on DT and firmware or swnodes compliant with DT bindings. Reviewed-by: Laurent Pinchart Tested-by: Laurent Pinchart Acked-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil